How to Check Remote Ports are Reachable Using ‘nc’ Command

A port is a logical entity which acts as a endpoint of communication associated with an application or process on an Linux operating system. It is useful to know which ports are open and running services on a target machine before using them.

That’s all. In this article, we explained how to check if ports on a remote host are reachable/open using simple netcat commands. Make use of the comment section below to write back to us concerning about this tip.

Aaron Kili is a Linux and F.O.S.S enthusiast, an upcoming Linux SysAdmin, web developer, and currently a content creator for TecMint who loves working with computers and strongly believes in sharing knowledge.

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When you open the man page, try to check the meanings of the options(-zv) used in the examples in the article. There could be possible changes in the nc or ncat options and how they function, especially in RHEL/CentOS 7.3.